Can i say this sentence, is this sentence grammatically correct. can i add it in my essay?

the sentence is:

after 4 years, a coincidence no one ever thought would happen, happened.

What was the primary message that dr.martin luther king jr wanted to communicate in the telegram he sent to chavez

What evidence from the text supports the conclusion that gilgamesh demonstrates courage and takes risks?

Plz answer fast a trip to florida in august means having with extremely hot weather. word bank perennial contend subvert tortuous p e rverse excerpt expound mediate sequester contrite abstain aptitude subjugate stringent abhor discern suffrage precise analyze resolute